from django.conf import settings
from django.contrib.auth.models import AbstractUser
from django.db import models
from itsdangerous import TimedJSONWebSignatureSerializer
import logging
# Create your models here.
from meiduo.utils.models import BaseModel
from users import constants
logger = logging.getLogger('django')

class User(AbstractUser):
    """用户模型类"""
    mobile = models.CharField(max_length=11, unique=True, verbose_name='手机号')
    email_active_status = models.BooleanField(default=False, verbose_name='邮箱验证状态')
    default_address = models.ForeignKey('Address',related_name='users', null=True, on_delete=models.SET_NULL,verbose_name='默认地址')
    class Meta:
        db_table = 'tb_users'
        verbose_name = '用户名'
        verbose_name_plural = verbose_name

    def generate_verify_email_url(self):
        """
        生成验证邮箱的url
        """
        serializer = TimedJSONWebSignatureSerializer(settings.SECRET_KEY, expires_in=constants.VERIFY_EMAIL_TOKEN_EXPIRES)
        data = {'user_id': self.id, 'email': self.email}
        token = serializer.dumps(data).decode()
        verify_url = 'http://www.meiduo.site:8080/success_verify_email.html?token=' + token

        return verify_url

    # @staticmethod
    def verify_token_user(self, token):
        serializer = TimedJSONWebSignatureSerializer(settings.SECRET_KEY,expires_in=constants.VERIFY_EMAIL_TOKEN_EXPIRES)
        try:
            data = serializer.loads(token)
        except Exception as e:
            logger.error(e)
            return None
        else:
            email = data.get("email")
            user_id = data.get("user_id")
            try:
                user = User.objects.get(id=user_id, email=email)
            except User.DoesNotExist:
                logger.error("用户不存在")
            else:
                return user


class Address(BaseModel):
    """
    用户地址信息
    """
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='addresses', verbose_name='用户')
    title = models.CharField(max_length=50, verbose_name="地址名称")
    receiver = models.CharField(max_length=20, verbose_name='收货人')
    province = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='province_addresses',verbose_name="省")
    city = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='city_addresses',verbose_name="市")
    district = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='district_addresses',verbose_name="区县")
    place = models.CharField(max_length=50, verbose_name="详细地址")
    mobile = models.CharField(max_length=11, verbose_name='手机')
    tel = models.CharField(max_length=20, null=True, blank=True, default='', verbose_name='固定电话')
    email = models.CharField(max_length=30, null=True, blank=True, default='', verbose_name='电子邮箱')
    is_deleted = models.BooleanField(default=False, verbose_name='逻辑删除')

    class Meta:
        db_table = 'tb_address'
        verbose_name = '用户地址'
        verbose_name_plural = verbose_name